Help Center/ Data Security Center/ User Guide (ME-Abu Dhabi Region)/ Data Watermarking/ Watermark Injection
Updated on 2023-03-02 GMT+08:00
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Watermark Injection

You can inject customized watermarks in PDF, PPT, Word, and Excel files on DSC. This section describes how to inject customized watermarks into local file or cloud files (files stored in the OBS bucket).

Prerequisites

Watermarks can be added for the PDF, PPT, Word, and Excel files.

Constraints

  • The operations described in this section apply only to PDF, PPT, Word, and Excel files.
  • If you inject an invisible watermark, the watermark is invisible and needs to be extracted using tools. For details, see Watermark Extraction.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner of the management console and select a region or project.
  3. In the navigation pane on the left, click and choose Security > Data Security Center.
  4. In the navigation pane, choose Data Watermarking.

    Figure 1 Accessing the watermark injection page

  5. Select a file into which you want to inject watermarks.

    Only PDF, PPT, Word, and Excel files are supported.

    • If the files to be injected with watermarks are stored in OBS buckets, select Cloud for Select File, locate the bucket, and select the target file. Click OK.
      Figure 2 Selecting a cloud file
    • If the files to be injected with watermarks are stored on the local PC, select Local for Select File and upload a file to DSC.

  6. After the file is uploaded, configure related parameters. Table 1 describes the parameters.

    Table 1 Watermarking parameters

    Parameter

    Description

    Example Value

    Watermark Type

    Both visible and invisible watermarks are supported. You can select multiple values.

    • Visible watermark. The watermark text is displayed in the file
    • Invisible watermark. The watermark text is invisible and needs to be extracted using tools. For details about how to extract an invisible watermark, see Watermark Extraction.

    Visible

    Configure Visible Watermark

    This parameter is mandatory when Watermark Type is set to Visible.

    Set Text, Font Size, Font Angle, and Transparency as required.
    • Font Size: 45
    • Font Angle: 46
    • Transparency: 30

    Configure Invisible Watermark

    This parameter is mandatory when Watermark Type is set to Invisible.

    Set Text as required.

    Text: ZhangSan

  7. After parameters are configured, click OK. The file with watermark injected is automatically downloaded to the specified path on the local PC.

    • If you inject a visible watermark, open the file to view the effect.
    • If you inject an invisible watermark, the watermark is invisible and needs to be extracted using tools. For details, see Watermark Extraction.

Parent topic: Data Watermarking